JP2001065360A - Cover of engined working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the watertightness of a base and to prevent the leakage of working fluid, fuel or the like to prevent the environmental contamination with respect to a cover for covering an assembly consisting of a working machine driven by an engine, a fuel tank and a battery, by providing the base forming a lower part of the cover with a liquid outflow preventing structure. SOLUTION: This engined working machine 9 is provided with an engine generator 1, a fuel tank 2 and a battery 3 mounted on a base 4, and they are covered by an intermediate cover 5 and an upper cover 6. The base 4 is formed by standing a frame member 4b from four sides of a rectangular bottom plate 4a made of an anticorrosion steel plate or the like, and a joint part thereof is fixed by welding, adhesion or the like to form a watertight liquid outflow preventing structure. Whereby the liquid such working fluid or the like leaked from the engine-working machine 9, can be prevented from being leaked from the base. A side plate 5a of the intermediate cover 5 is engaged with a thin engagement part 4c formed on an upper outer surface of the frame member 4b, and a side plate 6b of the upper cove 6 is placed on the upper part thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover for an engine working machine including a generator driven by an engine, a fuel tank, a battery, and a cover for covering them.

[0002]

2. Description of the Related Art Conventionally, an engine working machine that generates electric power by being driven by an engine is known, for example, as disclosed in Japanese Patent Application Laid-Open No. 4-194327. In these engine working machines, a support frame is disposed at a lower portion to support an engine, a fuel tank, a battery, and the like. The support frame surrounds a lower portion and a side portion is covered with a soundproof case.

[0003]

In the engine working machine having the above-described structure, since the bottom portion is not watertight, lubricating oil for lubricating the inside of the engine working machine, or fuel in the fuel tank, or When the battery fluid or the like leaks out, it flows out to the outside as it is, and the surroundings of the engine working machine may be soiled. Therefore,
A structure that ensures watertightness at the lower part of the main body, and in the event that work oil, fuel, etc. leaks out, catches the liquid with a member that covers the engine working machine, does not leak out, and prevents environmental pollution. Engine work machines were desired. Further, there has been a demand for an engine working machine capable of realizing suppression of fuel consumption and exhaust gas emission by an engine generator.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. In Claim 1, a cover for covering an engine working machine including a working machine driven by an engine, a fuel tank, and a battery, wherein a base constituting a lower member of the cover has a liquid outflow preventing structure. .

In claim 2, the cover has a three-part structure of a base, an intermediate cover and an upper cover.

According to a third aspect of the present invention, the upper cover can be opened upward.

According to a fourth aspect of the present invention, the upper cover and the intermediate cover can be opened.

According to a fifth aspect of the present invention, the working machine is a generator, and a solar panel is arranged on the outer surface of the upper cover and the intermediate cover so that the battery can be charged.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The overall configuration will be described. FIG.
Is a perspective view showing an engine working machine and a cover of the present invention, FIG. 2 is a side view of an upper cover and an intermediate cover of another embodiment,
3 is a perspective view showing a cover of the engine working machine provided with the solar panel, FIG. 4 is a control block diagram, FIG. 5 is a control flowchart, and FIG. 6 is a diagram showing a relationship between battery voltage (charging current) and time. is there.

The engine working machine 9 is, as shown in FIG.
The engine generator 1, the fuel tank 2 and the battery 3 are mounted and fixed on the base 4, and the fuel tank 2 and the engine generator 1 are arranged from the right front to the rear with the arrow F direction being the front, and the battery is disposed on the left. 3.3 are juxtaposed before and after. A lubricating oil tank 8 is provided at the front of the engine generator 1. The engine generator 1, the fuel tank 2, the batteries 3, and the like are configured so as to be covered by an intermediate cover 5 of the present invention described later and an upper cover 6. As described above, the cover of the engine working machine is configured to be divided into the intermediate cover 5, the upper cover 6, and the base 4.

First, the structure of the base 4 will be described. The base 4 has a bottom plate 4a composed of a rectangular plate or the like.
And a frame member 4b having a rectangular shape in a plan view, which is provided upright on the bottom plate 4a, and the base 4 is made of a corrosion-resistant steel plate or the like. The outer surface of the upper portion of the frame member 4b is reduced in thickness to form a fitting portion 4c.

A space between the lower portion of the frame member 4b and the bottom plate 4a is fixed by welding, bonding, or the like, or is integrally formed by deep drawing, forging, or the like to form a liquid-tight liquid leakage prevention structure. At least the total amount of the lubricating oil, fuel, and battery liquid contained in the engine working machine 9 is set to an amount that can be accommodated. That is, even when the liquid leaks from the engine working machine 9 disposed inside the frame member 4b, the liquid does not overflow from the base 4. For this reason, the lubricating oil tank 8, oil pan, or the fuel tank 2, the piping, etc., provided in the engine generator 1 are damaged, and the lubricating oil,
Alternatively, even if the fuel leaks or the solution of the battery 3 leaks, the base 4 can store the liquid up to the height of the upper portion of the frame member 4b, thereby preventing the liquid from flowing out.

The intermediate cover 5 includes front, rear, left and right side plates 5a.
.. And a partition plate 5b, and the upper and lower parts are open. The partition plate 5b partitions the inside of the intermediate cover 5 left and right, and is vertically fixed between the front and rear side plates 5a so as to be located between the engine generator 1 and the battery 3. A notch is provided at the lower part of the front and rear ends of the partition plate 5b so as to enter the fitting portion 4c. Thus,
When the intermediate cover 5 is fitted and installed on the base 4, the partition plate 5 b is located between the fuel tank 2, the engine generator 1, and the batteries 3, 3, so that vibration, heat or gas It does not transmit or enter each other's room, and also serves as reinforcement.

An intake hole 5c is opened in the rear side plate 5a so that air can be supplied to the engine generator 1, and a concave notch 5d is formed in the upper part of the other side plates 5a. 5d and 5d are provided so that air can flow, and intake and exhaust can be performed on the engine generator 1 side, and gas generated by reactions during charging and discharging can be discharged on the battery 3 side.

The upper cover 6 includes an upper plate 6a and the upper plate 6a.
, Which are vertically arranged from the periphery, and are formed as a box-shaped lid having an open bottom surface. The upper cover 6 is slightly larger than the intermediate cover 5 so that it can be fitted from above.

The base 4, the intermediate cover 5, and the upper cover 6 are fitted to each other and supported and fixed. However, the base 4, the intermediate cover 5, and the upper cover 6 may be fixed to each other by bolts, screws, or the like. It is also possible to adopt a configuration in which the components are fixed to each other using a locking tool or a band. With the above configuration, the intermediate cover 5 and the upper cover 6 can be easily attached and detached, and replacement and maintenance can be easily performed.

The upper cover 6 can be constructed as follows. That is, as shown in FIG. 2, the pivot members 5 are provided on either side of one of the front, rear, left and right sides of the intermediate portion cover 5.
e is arranged (or formed), and on the other hand, pivot shafts 16 are provided on both sides of the upper cover 6 'located on one side, and the pivot shaft 16 is pivotally supported by the pivot body 5e. .
In this way, it can be opened by rotating in the direction of the arrow in the figure. However, a hinge or the like can be used instead of the pivot body and the pivot shaft. The upper cover 6 'may be provided with a side plate, a one-touch locking device, a handle, and the like around the upper cover 6'.
Alternatively, wheels may be attached to the base 4 so as to be movable.

Further, a solar panel (solar cell) may be provided on the outer surface of the cover of the engine working machine. That is, as shown in FIG. 3, the solar panels 7 are arranged on the outer side surface of the side plate 5 a of the intermediate cover 5 and the upper surface (the outer side surface is also possible) of the upper cover 6, and are connected to the battery 3. . Thus, in the daytime, the electric power generated by the solar panels 7, 7,... Is supplied to the battery 3 to charge the battery 3, which has the effect of reducing the fuel consumption of the engine generator 1.

The engine working machine 9 includes a battery 3.
The power is taken out from the battery 3 to drive a motor or to turn on a lamp. When the power is consumed and the output voltage from the battery 3 becomes lower than a set voltage, the engine generator 1 is driven to generate power. And the generated power is charged into the batteries 3.

This charge control will be described with reference to FIGS. In FIG. 4, the engine generator 1 is an engine 11
A generator 12 is attached to the generator, and the generator (alternator) 1
2 is to fix a rotor on the output shaft of the engine 11 and arrange a stator (coil) on the outer periphery of the rotor (magnet);
When the engine 11 is driven, the rotor rotates and an alternating current is generated in the stator 13. This AC is rectified by the rectifier 14 to be DC, and supplied to the battery 3 for charging.
Further, a controller 15 is connected to the battery 3, and the controller 15 is connected to the solar panel 7 so that power generated by light from the sun can be supplied to the battery 3. In addition, the controller 15 is provided to the engine generator 1 in consideration of the environment and energy.
A wind power generator 17 may be further connected via the power supply to supply power.

When the battery 3 is connected to a DC load 18 such as a DC motor or a controller, the battery 3 is directly connected to the battery 3, and when the battery 3 is connected to an AC load 19 such as an AC motor or an electric light, the battery 3 is converted to AC through an inverter 20. Power is supplied after the power is turned off. The output of the battery 3 is connected to a controller 21 for monitoring the output voltage, and the number of revolutions of the output shaft of the engine 11 is input from the generator 12 to the controller 21. Further, the controller 21 is connected to an actuator 22 for controlling a cell motor and a choke for starting the engine 11 and an actuator 23 for changing a throttle valve.

In such a configuration, charging control will be described with reference to the flowchart of FIG. In this embodiment, the rated output voltage of the battery is 24V. The output voltage of the battery 3 is self-discharge or load 18.1.
With the use of 9, as shown by the broken line in FIG. Then, the battery 3 is stored in the controller 21.
Is read (S1), the voltage V1 is compared with the set voltage (22V) (S2), and at time t1 when the voltage drops below the set voltage, the starting actuator 22 is operated to start the engine 11. (S3).

Then, it is determined whether or not the charging is over (S
4) If it is not the end, it is determined that the charging is insufficient, and the constant voltage control is performed. If it is determined that the end is reached, the constant current control is performed. The determination of the end of charging can be made based on the temperature and specific gravity of the battery liquid, the output voltage of the battery, the charging time, and the like, and the means for this determination is not limited.

This is because the necessity of detecting the end of charging is closely related to the life of the battery. In other words, if the charging current remains large even at the end of charging, the temperature of the battery rises, the corrosion of the anode core metal proceeds, and the deterioration of the anode active material, such as softening or falling off, is promoted, and the life of the battery is shortened. Is shortened. In this embodiment, the end of charging is detected, and when the end of charging is reached, the charging current is reduced to prevent deterioration and prolong the life of the battery so that the battery can be used for a long time even if charging and discharging are repeated. Is what you do.

As described above, when the charging is not completed, the output voltage V2 of the generator 12 is read (S5).
The throttle actuator 23 is driven so that the output voltage V2 becomes the set voltage (30V in this embodiment) (S6) (S7). That is, constant voltage control is performed. In this case, specifically, when the voltage decreases, the engine speed increases, and when the voltage is higher than the set voltage, the engine speed decreases.

At the end of charging (S4), constant current control is performed. That is, the engine speed N is detected (S8), compared with the set speed (2300 rpm in the present embodiment) so that the output current becomes smaller than that at the time of the initial charge (S9), and deviated from the set speed. If so, the throttle actuator 23 is driven (S10) to make it coincide with the set rotation. Then, if they match, the motor is driven at the rotation speed for a certain time (15 minutes in this embodiment) (S11), and after a certain time, the engine is stopped (S12). This completes charging. This time is measured by a timer, but a clock of a controller can also be used.

[0027]

As described above, the present invention has the following advantages. That is, a cover for covering an engine working machine including a working machine driven by an engine, a fuel tank, and a battery, wherein a base constituting a lower member of the cover is provided with a liquid leakage preventing means. Even if the lubricating oil tank and oil pan of the engine generator, the fuel tank, and the piping that circulates the lubricating oil are damaged and the lubricating oil and fuel leak or the battery fluid leaks, the liquid Can be prevented from leaking to the outside and environmental pollution can be prevented. Also, the surroundings of the engine working machine are not stained.

Since the cover has a three-part structure including a base, an intermediate cover and an upper cover, the cover can be easily assembled and disassembled. In addition, according to the specifications, a panel can be attached, a handle can be attached, a pivot mechanism can be provided, and changes can be easily made.

According to a third aspect of the present invention, since the upper cover is configured to be openable upward, the upper portions of the engine generator, the fuel tank, and the battery are opened so that the fuel, lubricating oil, and battery fluid can be inspected and replenished. Can be easily performed.

According to the fourth aspect of the present invention, since the upper cover and the intermediate cover are configured to be openable, operations such as replacement of an engine generator, a fuel tank, and a battery, and maintenance can be easily performed.

According to a fifth aspect of the present invention, the working machine is a generator, and a solar panel is disposed on the outer surfaces of the upper cover and the intermediate cover to charge the battery. As a result, the driving time of the engine generator can be reduced, and fuel consumption and exhaust gas emissions can be suppressed. If charging is performed simultaneously with the engine generator, the charging time can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an engine working machine and a cover of the present invention.

FIG. 2 is a side view of an upper cover and an intermediate cover according to another embodiment.

FIG. 3 is a perspective view showing a cover of an engine working machine provided with a solar panel.

FIG. 4 is a control block diagram.

FIG. 5 is a control flowchart.

FIG. 6 is a diagram showing a relationship between battery voltage (charging current) and time.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Engine generator 2 Fuel tank 3 Battery 4 Base 5 Intermediate cover 6 Upper cover 7 Solar panel 8 Lubricating oil tank 9 Engine working machine

Claims (5)

[Claims] 1. A cover for covering an engine working machine constituted by a working machine driven by an engine, a fuel tank, and a battery, wherein a base constituting a lower member of the cover has a liquid outflow preventing structure. A cover for an engine working machine. 2. A cover comprising: a base; an intermediate cover;
2. The cover for an engine working machine according to claim 1, wherein said cover has a three-part structure with an upper cover. 3. The cover for an engine working machine according to claim 2, wherein said upper cover has a structure capable of being opened upward. 4. The cover for an engine working machine according to claim 2, wherein the upper cover and the intermediate cover are configured to be openable. 5. The engine working machine according to claim 2, wherein the working machine is a generator, and a battery is rechargeable by arranging a solar panel on an outer surface of the upper cover and the intermediate cover. cover.